Angle drive



June 27 1944 J. H. 'HOLSTEIN ,2,352,262

ANGLE DRIVE Filed Nov. 23, 1342 2 Sheets-Sheet 1 J. H. HoLsrElN 2,352,262

ANGLE DRIVE Filed Nov. 25, 1942 2 sheets-sheet 2 Tfr SS 52| INVENTOR ll Ir/Heil' a aflorneg June 27, 1944,

Patented June 27, 1944 ff YUNITED l t ANGLE univie Y l John H. Holstein, Chicagoglll.; assignor to Good-J' man Manufacturing Company,` Chicago, Ill., ai v Y' A corporaton'of Illinois t;

vApplication November 23, i942, Serial.No."466,573

(Cl. 198'220) y y '1 yvice shown 'inv Figure 1 withcertai'n: parts jof the 13 Claims.

yThis linvention relatesvto improvements in anvgleV drivesl for shaker conveyor trough lines 'and `more particularly relates, to an improved an'gle 4drive automatically adjustable to drive one trough section of a conveyer from another when fthe trough sections are in various positions of horizontal angular adjustment with. respect .to eachother. L. .,Heretofore, angle-drives of the 'bell crank type 4 have been used forv driving a branchshaker con- `yeyer trough line, .at an angle to a mainv conveyer trough line, fromfa main shaker conveyer trough line. Such angle drives are satisfactory when the angle between the branch and main trough lines is fixed, but di'iculties are encountered vwhen the angular position of the branch and main trough lines is frequently' changed. One reason is that the arms of the bell crank are xed for one angular position of the troughs and the efficiency of the. conveying action ofthe NCI drivenv trough broken away,and`showing the ang1`e` drivein substantially longitudinal section;

l Figure 411s ajplan view ofthe angle drive with certain parts broken away' and' certain .other parts shown in horizontal "sectionfinorder to illustratecertain details of construction thereof, nd showing the leverarms ofthev ell crank at thecentral part of theirstrokes;`

l Figure 5 is` agplanjviewfsomewhat similar to 1 `Figure 4, butvwithlthe driven'trough section of driven trough section is impaired when the troughs are at an angle other than that' for which the bell crank was designed,V due to the fact that the bell crank will tend to drive the driven trough in a transverse as well as a longitudinal direction. This will impart a thrusting action to one side of the driven trough line which will cause the material conveyed to pile up and move along one side of the driven trough line and will also impart an uneven thrust to the guide means for the driven trough line, where a guide means is provided.

The principal objects of my present invention are to overcome these difficulties by providing an angle drive including a bell crank, the lever arms of which are automaticallyadjustable' Withrespect to each other upon horizontal angular adjustment of the driven trough section of the conveyer, so that a substantially straight line driving action will always be imparted thereto.`

vOther objects of my invention will appear from time to time as the following specication proceeds and withreference to the accompanying drawings wherein: f Figure 1 is a fragmentary plan view of a shaker conveyer trough line, showing a trough section of a branch shaker conveyer trough line 'disposed at right angles to the main trough'line, andgenerally illustrating my improved form of angle drive;

Figure. 2 is an end View of the device shownv in Figure 1, with certain parts ofthe troughs broken awayand certain parts of the angle drive showninvertlcalsection'; Figure 3 is a view in side elevation of thev desthe conveyer"inafdiiierent position thanmin Figure 4, and with certain other parts broken away and shown in section 'than 'in Figurel 4, 'butshowing the. leverarms; of "the bell crankat the central partof theirstroke @j Figure 6 is' a dtail view injside elevation of the" angle' drive', withpertain, parts .broken away and y.certain otherpartsshown section; and

Y Figure .'Z'isv an enlarge V detailfjfraf'gmentary vertical 'sectional view showingcertain details of the mounting l,for the spring, which 's ervesvlto hold the driven'lever arm ofthe' bell 'crank in' fixed relation with respect tothe rivingarmf of Ysaid bell crank. l Referrin'gqnow in ,particularto the drawings, a trough section l0 ofa mainconveyerltrough line is partiallyshown in Figure 1', and la. delivery end of a trough section Il of a branch conveyer troughv line is' shown las .beingfarran'ged ,to deliver t turning lmovementfwith Frespectto the driving trough section |01 'about a 'vertical'axis 4spacedto one side of said driving' troug`h section. The receiving end of sai'dftroug'h section A"ll'" is reciprocably mounted on said angle fdrive ontwo pairs l M,- orie *pair of 'said rollers being on each side of said trough section. Said rollers are rotatable about'vertical axes and each has asubstantially V-shapedrim orface. Said faces are adapted to engagey andibej supported by facing angular guide tracks 1| 5; jl 5, Said guide tracks are mounte'don` and extendalong upright supports I6, i6, whichjextend upwardly from opposite sidesofaturning frame il. As herein-shown, Said. rollers 'are mounted ony vermounted on a shouldered annular bearing 23,.

mounted on an annular upright flanged portion 24 of a base 25, for said angle turn. A hanged retaining ring 26 is mounted on 'said upright flanged portion of said base andf'eritds 'over a flanged portion 21 of said turning frame, to hold said turning frame from vertical movement with respect to said base.

The base is provided with a pair 'of'lat'rrms29, 29, adapted to rest on ohdsfahdbe heldin position Iefjacl's '30,' 3U interposed bltween the ends 'o ij" aidarin's, "andthe mir1'e roof. Said jack may lbeof'aifordiriary screw type of Yconstructio d fare notlieein shown "or 'de scribed 'in' "sincethy'frmno'part of my presohtihveh on.

When the base '25 Aisfheld 'stationary on'the ground,A turning fm vement of the 'discharge trough section I'IlA `will daseturning movement of apart vortiooiiy *ostondirig support arms Lsa, 33

integral withfsaidfrockxng `'rnexr'lb'er and isadapty `tion and is pivotally connected at its free `end to a bracket 53, depending from and secured to the bottom of said trough section for reciprocably driving said trough section upon rockingmoveinent Aof said rocking member 43.

y'Ihe'friction band 4|, which forms the releasable drive means between the rocking members '35 and 43 of the bell crank, is connected with a pivoted engaging member 54, by means of a pivotal pin 55. Said engaging member serves to engage or disengage said friction band with the drum 40y and is 'mounted between vertically spaced upper and lower sides v56, `5B"orf the rocking member 4.3, and is pivotally connected thereto by means of :a vertical vpin 51.

Said engaging member is herein sljic'iwnxlas being of la'ho'llow box-like construction and has apair o f vertically spaced upper and lower sides`59; 59 between which extends a link which vis pivotally connected theretol by means of a pivotal pinfil.y rl'he end of said link opposite'from said pivotalipin is piv'otally connected with thewfree end of the, frictionband 4|. Said link may be shortened!orjlengthened to adjust the tension offsaidffri'ction,b'andjonvsaid brake drum., l

'A `l compression spring'S is seatedbetween thejspaced upper and lovverv-s`idesy 56, 5| ofthe jrocking'member "43 and abutsan endw'all 54 "of saidjrooking member at one of its endsandon `end"| 5ofthejengaging member 54Y at its opposite `en'oL'to urge said engaging member in a'direcy tion to "engage the friction band 4| with the Adrum 49.

Theme ans for releasing the vfriction band 4| fromfthe drum 49includesa sto'pjin the form of arollfer trrionted on the drumj portion of the 'turning frame `-Saidro11er is adapted to en- 'gage ra stopt'l on the engaging member 54 to lr,el ef1se the friction band '4|, Said stop is'mount'- [ed between -thejuppor and 'lower 'sides 5s, ssjof 'said pivoted member, and is hereinfsljlown 'aosfbeing formed integral therewith.Y "Ifhe: jdistance between the engaging surface of the roller 66 and the stop 6 1 is equal to half the stroke of the conveyor, when the rolckingfmernber 43 is cen'- 'tere' d"with respectV to vthe driventrough section v||, and isl'vaty the centerof its stroke. 'When said :rocking member 43 is off center with respect to the trough |I, saidstopvvill engage said roller duringfalternatestrokes of 'the conveyor, to depress 's'ad pivot'ed engaging'A member against the spring"63, 'and move the link "60 in a direction to release the frictio'nband 4 'from the drum 40. During the opposite strokes 'of the cone veyer said frictionband will'loeeng'ag'ed with said drum.. It should here bo'uhderstoodjthst the tiho'sid vfriction haha isoiserigged f' 'rh said drum is only 'equal to aportion of" 'tli e` stroke 'of the conveyer,'except vwhen the roller li'fis'fm an extreme, position, and that the lengthjff ti'rhojsaidrouer is Hengaged with' saidjardinjdo-v Cras's as the rockingIlflf'rrlJer'45,l reachSace'pf tre'd position with Arespect to )the ;troigh j This engaging and disrig'agi'rg actionjoffsaid friction bad willthus VOccur 'until the distarce between the engaging faces of thestopsi and .,I'Il is equal to one-half the stroke of the .convveyer, when the rocking member 43 is at the `center of its stroke, as may be seen with reference to Figures and 6.

.An .engaging member or stop 69 is provided on the drum portion of the turning fra-me II and is spaced from the engaging member yIiIfon theopposite'side .of the stop 61 from the roller 66. -.Said engaging member is adapted to be engaged by a stop- 'ID on the pivotedrnember 54 when the trough section II is moved in an opposite direction from that just described, and the rocking member 43 is oifcenter with respect to the trough section I I.

When the trough section I I is turned to the A left,*as in Figure 5, and the rocking member 35 isbeing reciprocably driven bythe trough section I Il, the stop 'I0 will engage the stop 69 during each stroke of the conveyer, to release the friction band 4I- during a part of each stroke'of the Iconveyer. AThe amount of release of said friction band depends upon the distance the trough section H is off center with respect to the rocking member `43, as has been mentioned before, said friction band being engaged with theA drum 40 lduring the remainder of the stroke of the conveyer by the spring 63. This releasing and engaging action -Will occur until the engaging member B9 no longer engages the stop 10, at which time the stops 69 and B'I will be centered with respect to the stops 'I0 and 66. The link l5I) will then drive the trough section in a line substantially parallel to the center line of `said trough line.

, When` the trough section II is Iturned in an opposite direction and the conveyer is in operation, the stop lE'I will .engage the stop 6'6 during. each stroke ofthe conveyer, to alternately engage and release the friction band 4I with lrespect to the drum 4U, until the distance between the engaging faces of the stops 5E and 61 is the sameas the distance between the engaging faces of the stops 'I0 and `69, at which time the rocking member 43 will be centered with respect to the trough I I.

`,It may be seen from theforegoing that a novel form of lbell crank drive has been provided for driving one trough section of a shaker conveyer from another, one of which is horizontally adjustable with respect to the other, and that the l.aralnsf of the .bell crank are. relatively movable Withrespect toleach other so vthe drivingaction of the drivenbell crank will always be the same regardless of the angular position of the driving .trough section lwith respect to the driven trough section. It may also be seenthat the arms of the bell crank are moved to their proper driving positions by the lreciprocable action of the conveyer and that the .bell crank associated with the horizontally adjustable trough is self-centering,

.so a substantially straight line drivingaction will always be imparted to the adjustable trough sec- .tion of the conveyer. y i

f -While I have herein shown and described one form in which my invention may bevembodied, it will be understood .that the constructionthereof and the arrangement of the various parts may be altered without departing from the spiritand 'scope thereof. Furthermore, I do not wish to be construed as limiting my inventionrto the speciiicfembodiment illustrated, excepting as it mayV ybe limited inthe appended claims. y

i Iclaim asmyinvention; I f f 1, In a shaker conveyer angledrive; a pair of conveyer troughs, l'one of'which is arranged at an angle with'respect to the other and which is horizontally adjustable with respect to the other, `and means for driving one trough from the other in substantially the direction of the longitudinal axis of the driven trough in all positions of 1ongltudinal adjustment of said troughs with respect lto each other including a bell crank, one arm of which is movable with respect to the Qtherrupgn adjustable movement of one trough with `respect to the other, to maintain the farms of. said bell crank in the same angular relation With-,respect to their associated troughs in all positionsffof horizontal adjustment of said troughs. with .respecttoeach other. 2,. In a shaker conVeyeran-gle. drive, `a pairfof conveyer troughs, one of which is arrangedatfan angle with respect to the other and which 'is horizontally adjustable with respect to the other, and means for driving one trough from theother in substantially the direction of the longitudinal axis of the driven trough in all positions of longitudinal adjustment of said troughs With respect to each other including a bell crank, one ,arm of which is movable with respect to the othe'rupon adjustable movement of one trough 'withlrespect to the other, to maintain the arms of saidbell crank in the same angular relation withv respect to their associated troughs in al1 positionso'f horizontal adjustment of said troughs' withl'respect to each other, and friction means fo'rholding said arms of said bell crank-in fixed relation with respect to each` other, to drive onetrough from theother. v f 3. In a shaker conveyer angle drive;- a pa r of conveyer troughs, one of which .is arranged at jan angle with respect to the other and .Whichjds horizontally adjustable with respect to the other,

and means for driving one trough" from the other justment of said troughs'with respect tdea'ch other, friction means for holding said 'ar'ms of said bell crank in xed relationJ with respect to each other, and means'` adjustably movable with said adjustable trough forreleasing said friction means, to permitA Vrelative movement of one vof said armswith respecttotheother,

f1; `In a shaker conveyer angle drive, a 'pair of conveyer troughs, one of which is arranged at an angle with respect to the other and which" is horizontally adjustable with respect to the other, and means for driving one trough `from theother including a'bell crank, one armof which is movable with respect to the otherlupon adjustable movement of one trough with respect 'tok'th'e other,.t0 maintain thearms of said b ell'crank in the same angular relation with respectL to their associated troughs in all positions of horizontal adjustment of said troughs ,with respect to each otherrfriction means for holdings'aid arms of said bell cranks in fixed relation with said rst rocking member, a kdrive connection( IfromAsai'dsecond rocking member to 'said driven jitrou'gh,and means for `"driving one rocking l membeijfrom 'the other, said meansbeingreleasable topermit relative movementE of' one rcking mem- 'movement vof `one trough Lwith respect to :the other, to q maintain `the j'rocking 'member asso- 'crate-d 'v-with ythe `driven :trough in tney-same 'angular frei-ation with respect thereto, lin an psitionsjfof adjustment thereof and @being auytomatically "operative to 'center 'said second .rocking member `with `respect r to lsaid driven n t6.'.1In"'ashak'er conveyerengle drive', adriving trough, a driven trbu'gh Varranged 'in' cascade relat'f'n "with .respect to saidl "driving `trough 'and beinghorizon'tally adjustable With respect thereitofarckingm'emben a""drive connection from said driving trough -to said rocking memberja ls'eond "rocking vmember'ro'ckable "about an jaxis fl'caxialvvith the' axis of r'ckingimovement of 'said `"first'rocking member, a drive'connection"from sardi/second A `rocking memberv to said'driven trough, anda friction drive Connection from'one `r,oclingfmember tothe otherfsaid drive connecttionbeilngfreleasable upon horizontal 'mover'rient 'ff saidhorizontally adjustable trough,k to permit rel a' t'/ive I movement of `one rocking member with respect-tor-Vthe other upon adjustable movement ,off said adjustable trough, tof'. maintain said; seeyoncl rockingmember in` 'th'eu'same angul arf relationwith ..respect to saidad'justable trough. 'in all-:positions of adjustment thereof.

-'7.l-Inashakerconveyer angle drive, a driving` l'troi'ilg'h, a 'driven trough arranged fin cascadefrelation with respect' to said 'driving trough Sand rl-being` horizontally adjustable vvith respect thereto,=:a rocking member, a connection from'one t--troug'hftofs'aid rocking member, forrocking said .i

leasble engaging connection with said other rockingmember.

f8. In a shaker conveyerangle drive, a drivn'g trough, a driven ltrough adapted to 'be :arrangdjat' an angle'to V said :driving trough, one nfSaId troughs beinghorizoltally'adjllstable With respect to lthe zother, V-a :rocking member, Va aconfn'ectionffiomzone trough? t0 said rocking member,

-1f`o`r rockingsaid,ro'cking'rnember, a :second 'rock- -ing member rockabl'e about Aan axis coaxial with the axis of rocking movement ofrsaidirst rocking member,a drive connection Afromsaid second rocking' memberito Vsaid ,'driven itrough, and `a Y friction drive connection 7from one rocking. mem- ."ber to the other,fsaiddrive'connection being'ref-leasable upon "horizontal movement'of'said hori- "zontally adjustable trough, yto permit 'said rocking member associated Vwith :said adjustable 'trough to move to a position tto `maintain lsaid vrocking member inthev'same 'angular relation With respect to said adjustable trough 'inallpositionsl of adjustment thereof, yand including a friction band associated 'with one of saidrokl lingmembers andy having rreleasa'ble engagingc'on'- nection with said other rocking membenandfan 'engaging connection b'etween said ladjust'z'alble trough and said 4friction band, for releasiri'gfsad friction banduponadjustable movement offs'aid adjustable trough. v f

'9. In a shaker conveyerangle drive, a driving ytrough, a driven trough adapted to`be arranged at an angle to said driving trough, one of said troughs being horizontally adjustable 'with respect to the other, arocking member, a connection from one trough to said rockingmembenfor rocking said rocking member, a second rocking member rockable about an-axis coaxial lWithth'e member, a drive connection 'from said second rocking member `to said driven troughf anti "a friction drive connection from one rockingrm'em'- ber tothe other, said ldrive connection being-re- Vleasable upon horizontal' movement of said'lhorizontally adjustable treugnto permitI said rocking member associated with AVsaid adjustable trough to move to'aj position'to maintainfsaid rocking member in't'the same angulary relation with respect to lsaid adjustab'le'trough all lpositions of adjustment thereof, andinicludin'gf'a friction band associated''With4 one of said vv rockiing members and 'having releasable v engaging ,connection with said other rocking member; 'and spacedapartengaging meansfmovable Withsaid adjustable trough, 'for releasing said lfriction band upon horizontaladjustable movementf said adjustable trough"'inone directionffornother. y Y I 'i 5^" 10. In a shaker conveyery angle'drive, a"drlving trough, a driven trough'adaptedto be varranged at an langle to :said drivingrtrough, one off-sid troughs being horizontally7 adjustable-With-respct to the other, a rocking member, a connectionfrom vone trough to said rocking member,-forro`kln'g saidrocking member, a second rocking 'member rockable about anaxis coaxial with tlielaxl's-'f rocking movement of' said 'iirst rockingf'mem'b'er, a drive connectionfromsaid second rocking'mernvber to said driven troughyandl a friction drive connection from one rocking member to thelo'ther, said drive connection being releasable uponhorizontal movement of-said horizontally adjustable troughY to permit vsaid rockingmember :associated with said adjustable' trough-to move' to exposition. to vmaintain said Yrocking member in 'Tthel'sa'm'e vangular relation 'with respect yto said adjustable trough in all positions of adjustment 'thereofiarid including a Vfriction band associatedwitlronfof said rockingr "members'jyieldable means? foryildably engaging saidfriction'bridfwith :saidther rocking member, and meansfmovable -vfithJ vSaid adjustable A'trough findfadalpted'ftol release Said friction band against said yieldable means upon reciprocation of the conveyer and during alternate strokes of the conveyer.

11. In a shaker conveyer angle drive, a driving trough, a driven trough adapted to bearranged at an angle to said driving trough, one of said troughs being horizontally adjustable with respect to the other, a rocking member, a connection from one trough to said rocking member, for rocking said rocking member, a second rocking member rockable about an axis Icoaxial with the axis of ro cking movement of said first rocking member, a drive connection from said second rocking member to said driven trough, and a friction drive connection from one rocking member to the other, said drive connection being releasable upon horizontal movement of said horizontally adjustable trough to permit said rocking member associated with said adjustable trough to move to a position to maintain said rocking member in the same angular relation with respect to said adjustable trough in all positions of adjustment thereof and including a friction band associated with one of said rocking members, yieldable means for yieldably engaging said friction band with said other rocking member, and means movable with said adjustable trough and adapted to release said friction band against said yieldable means upon reciprocation of the conveyer and during alternate strokes of the conveyer, including a pair of spaced engaging members adapted to engage said means for yieldably engaging said friction band with said rocking member, to release said friction band during the portions of alternate strokes of the conveyer to cause said friction band to move said second rocking member into a definite angular position with respect to said driven trough, each of said engaging members being spaced from their point of engagement with said releasable means a distance .equal to half the stroke of the conveyer when said second rocking member is at the center of its stroke and is in the proper angular position with respect to said driven trough section.

12. In a shaker conveyer angle drive, a driving trough, a driven trough adapted to be arranged at an angle to said driving trough, one of said troughs being horizontally adjustable With respect to the other, a rocking member, a connection from one trough to said rocking member, for rocking said rocking member, a second rocking member rockable about an axis coaxial With the axis of rocking movement of said first rocking member, a drive connection from said second rocking member to said driven trough, land a friction drive connection from one rocking member to the other, said drive connection being releasable upon horizontal movement of said horizontally adjustable trough, to permit said rocking member associated with said adjustable trough to move to a position to maintain said rocking member in the same angular relation with respectto said adjustable trough in all positions of adjustment thereof and including a friction band associated with one of said rocking members, yieldable means for yieldably engaging said friction band With said other rocking member, and means movable with said adjustable trough and adapted to release said friction band against said yieldable means When said second rocking member is out of the proper position with respect to said driven trough to automatically center said second rocking member With respect to said driven trough including a pair of spaced stops having operative connection with said yieldable means, `a pair of spaced stops associated with said movable trough and spaced on opposite sides of said iirst mentioned stops, one of said rst mentioned stops being adapted to engage one of said second mentioned stops during alternate strokes of the conveyor, to release said friction band against said yieldable means, each of said second mentioned stop members being spaced from one of said rst stops a distance equal to half the stroke of the conveyer, when said second rocking member is at the center of its stroke and is in the proper angular position with respect to said driven trough.

13. In a shaker conveyer angle drive, a driving trough, a driven trough adapted to be arranged at an angle to said driving trough, one of said troughs being adjustable with respect to the other about a vertical axis, and means for driving one trough from the other in all positions of adjustment of one trough with respect to the other including a rocking member, a connection from one trough to said rocking member, .a second rocking member, rockable about an axis coaxial with the axis of rocking movement of said first rocking member, and a drive connection from one rocking member to the other, releasable upon adjustable movement of one trough with respect to the other, for driving one rocking member with respect to the other, but permitting relative movement of one rocking member with respect to the other, to permit said rocking members to be adjustably moved :as said troughs are moved with respect to each other, to reduce angularity in the drive from said rocking members to their associated troughs including a friction band, an engaging connection between said friction band and one of said rocking members, and means movable with said adjustable trough, for releasing said friction band, to permit said other rocking member to move with said adjustable trough.

JOHN H. HOLSTEIN. 

